Since your clearing up some quests and correcting name errors and such, could it be possible if you could check out this quest of Gorf and Mazzy, and see if there's any problems with its scripts.
Every time i play BG and i get this quest either i get some spawn errors when Gorf shows up outside the copper coronet, where 4 or more "Bystander" spawn, until finally he gets to kill one and says his line in which i have to go inside and challenge him to the duel. But then inside, the quest always seems to break up in between talking with Bunkin or Festule ...
I've done in all my games perhaps 1 time all the way this quest, the other times i always get the quest broken, where maybe i give the potion to Bunkin but Gorf doesn't show up, or i directly talk to her and Gorf doesn't still show up and she keeps on repeating her "Your so gonna get it" type answer ...
Perhaps there IS actually something wrong with the scripts for that quest, or not all situations are taken into consideration ... if you got the time could you check it out ...
Thanks,
-Gandalf-